main
Ray Set visibility: public b485515 2d ago
{
  "schema_version": 1,
  "type": "component",
  "slug": "czra4736-hf",
  "title": "CZRA4736-HF",
  "brief": "Comchip Zener Diodes, DO-214AC(SMA). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "diodes",
    "czra4736-hf",
    "factory-2.0.0",
    "extractor-text"
  ],
  "component": {
    "mpn": "CZRA4736-HF",
    "manufacturer": "Comchip",
    "package": "DO-214AC(SMA)",
    "pin_count": 2,
    "category": "Diodes",
    "subcategory": "Zener Diodes",
    "datasheet": "https://datasheet.lcsc.com/datasheet/pdf/63c7a91f5a99e04e39975b7d34d2c543.pdf",
    "parts": {
      "symbol": "czra4736-hf.kicad_sym",
      "footprint": "czra4736-hf.kicad_mod",
      "model_3d": "czra4736-hf-hero.glb",
      "model_3d_plain": "czra4736-hf-etched.glb",
      "model_3d_step": "czra4736-hf-etched.step",
      "model_3d_step_plain": "czra4736-hf.step",
      "lbr": "czra4736-hf.lbr"
    },
    "distributor_links": {
      "lcsc": "C6206604"
    },
    "distributor_check": {
      "checked_at": "2026-10-22T19:13:32Z",
      "source": "Component Ocean /api/assign-pns",
      "digikey": {
        "pn": null,
        "status": "quota"
      },
      "mouser": {
        "pn": null,
        "status": "quota"
      }
    },
    "pins": [
      {
        "number": "1",
        "name": "Cathode",
        "type": "passive",
        "description": "Cathode, indicated by the cathode band on the package; nominal zener voltage of 6.8 V at IZT = 37 mA for CZRA4736-HF."
      },
      {
        "number": "2",
        "name": "Anode",
        "type": "passive",
        "description": "Anode terminal of the zener diode, with a maximum power dissipation of 1000 mW."
      }
    ],
    "provenance": {
      "extractor": "extract_pins 0.3",
      "factory_chain": {
        "factory": "2.0.0",
        "extractor": "extract_pins 0.3",
        "primary_model": "claude-sonnet-5-5",
        "primary_mode": "text",
        "consensus_model": "claude-sonnet-5-5",
        "consensus": "agreed",
        "guards": "pin_guards 0.1: passed",
        "guard_notes": [],
        "pages_sent": 6,
        "cost_usd": 0.0469,
        "at": "2026-10-22T19:13:23"
      },
      "datasheet": {
        "url": "https://datasheet.lcsc.com/datasheet/pdf/63c7a91f5a99e04e39975b7d34d2c543.pdf",
        "pages": 6,
        "sha256": "bc2c56bbb07eb93c",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 2,
        "described": 2,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "czra4736-hf.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          2.7,
          2.22
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "1cfddd4e3b1bf22b8fc6ee3258c2aade882ed7b85b528e23b9db42437775a1db",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "czra4736-hf-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          5,
          2.7,
          2.22
        ],
        "zmin_mm": 0,
        "centre_offset_mm": 0,
        "footprint_binding": "identity",
        "sha256": "82fe4f2f39185d0fe73b20889943d8e5a25d92c7f94bed300e40b6b025f911eb",
        "checked": "2026-10-22",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "Comchip",
      "Package": "DO-214AC(SMA)",
      "Category": "Diodes",
      "Pins": "2"
    },
    "characteristics": {
      "version": 1,
      "source": "datasheet",
      "datasheet_sha256": "bc2c56bbb07eb93c8bfb19856116d312410ad63785af01f7ccb2a0fdf0457f05",
      "rows": [
        {
          "name": "Zener voltage",
          "symbol": "VZ",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": 6.8,
          "max": null,
          "conditions": "@IZT",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener voltage tolerance",
          "symbol": "",
          "kind": "tolerance",
          "unit": "%",
          "min": -5,
          "typ": null,
          "max": 5,
          "conditions": "Standard zener voltage tolerance",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Test current",
          "symbol": "IZT",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": 37,
          "max": null,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener impedance",
          "symbol": "ZZT",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 3.5,
          "conditions": "@IZT",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Zener impedance knee",
          "symbol": "ZZK",
          "kind": "electrical",
          "unit": "Ω",
          "min": null,
          "typ": null,
          "max": 700,
          "conditions": "@IZK = 1.0 mA",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Reverse leakage current",
          "symbol": "IR",
          "kind": "electrical",
          "unit": "uA",
          "min": null,
          "typ": null,
          "max": 10,
          "conditions": "VR = 4.0 V",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Surge current",
          "symbol": "Isurge",
          "kind": "electrical",
          "unit": "mA",
          "min": null,
          "typ": null,
          "max": 660,
          "conditions": "",
          "source_page": 2,
          "source": "datasheet"
        },
        {
          "name": "Forward voltage",
          "symbol": "VF",
          "kind": "electrical",
          "unit": "V",
          "min": null,
          "typ": null,
          "max": 1.2,
          "conditions": "IF = 200 mA",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Power dissipation",
          "symbol": "PD",
          "kind": "absolute_maximum",
          "unit": "mW",
          "min": null,
          "typ": null,
          "max": 1000,
          "conditions": "@TL = 75°C",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to case",
          "symbol": "RθJC",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 30,
          "conditions": "Mounted on 0.2\"x0.2\" (5x5mm) FR-4 PCB",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Thermal resistance junction to ambient",
          "symbol": "RθJA",
          "kind": "thermal",
          "unit": "°C/W",
          "min": null,
          "typ": null,
          "max": 150,
          "conditions": "Mounted on 0.2\"x0.2\" (5x5mm) FR-4 PCB",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Operating temperature",
          "symbol": "TJ",
          "kind": "recommended_operating",
          "unit": "°C",
          "min": -55,
          "typ": null,
          "max": 150,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        },
        {
          "name": "Storage temperature",
          "symbol": "TSTG",
          "kind": "absolute_maximum",
          "unit": "°C",
          "min": -65,
          "typ": null,
          "max": 175,
          "conditions": "",
          "source_page": 1,
          "source": "datasheet"
        }
      ]
    }
  },
  "variants": [],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "czra4736-hf"
  ],
  "discovery_pitch": "CZRA4736-HF (Comchip) component page: datasheet pinout, KiCad symbol, footprint and 3D.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "czra4736-hf.kicad_sym",
    "czra4736-hf.kicad_mod",
    "czra4736-hf.glb",
    "czra4736-hf.step",
    "czra4736-hf.lbr",
    "docs/hero.png",
    "docs/czra4736-hf-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html",
    "czra4736-hf-hero.glb",
    "czra4736-hf-hero.overlay.json",
    "czra4736-hf-etched.glb"
  ],
  "visibility": {
    "public": true
  }
}